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![Linus Torvalds](/assets/img/avatar_default.png)
Cleanups Remove kdb ssb command - there is no in kernel disassembler to support it Remove kdb ll command - Always caused a kernel oops and there were no bug reports so no one was using this command Use kernel ARRAY_SIZE macro instead of array computations Fixes Stop oops in kdb if user executes kdb_defcmd with args kdb help command truncated text ppc64 support for kgdbts Add missing kconfig option from original kdb port for dealing with catastrophic kernel crashes such that you can reboot automatically on continue from kdb -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJRMhJPAAoJEIciOldedpOj25gP+wZn/u3YxOGkhL3CIBOegEwW KFte7FFNeLNzw8tyEzBMVXok85PJ+/lvm+Xi+a4hhtV7/S+WvwGoWeIg0zCDtrAu im4m2X1u00Egcztcr4tCk8Lwc6vNm5KZsBsUsbKKi0K8twaWifkxLMEWeq+3WLzh +1d4TDkziwdZfcLpUHvohmCsCyg1EdjUxTYnWpSJvLrq5lhNvTQBowHWZH06GBcI MmhC+aHp3myk2/Vwd1AuDq+jIRbH3ORV50wfRONBR7OJ58sOoD9nV8Mr+fy8QLRN BPv8WxeRSm7X/Hl6nPm9PX7oNQSg+Ba1+5helIIJMdGGWhJbl9AZslFEU40Zn3yS V7FmS3mwRSA8NCgfZ+CO6311tirSCvtf34+5ttXEntyK1ujaplSPffBP4Ya26y6q TB2wLr91+3L0LhzrVRj20P13qexsWUW4t9inLzqtDApD3Zljl9Kuwd0febCiLg0r mgGkpZjK0VI7S7RfkxpmEyU4bFP2lCTzBOKAKOfIV6O88bfqFdv5QCTHODJArf22 ugDGPX3tw++Lyc9otGxyPbxmc7npYGqTD1UEM8xK/7sEBiWJm71jjwHN1bwRwB3o EC5bcZ6TJgDJnnvYGBTQec74PnUiCu/UnQVFFabzhowQCJTIWSJkPxjnI2BKK1V5 3exPqogclusAhhwopOtG =Hwbq -----END PGP SIGNATURE----- Merge tag 'for_linux-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb Pull KGDB/KDB fixes and cleanups from Jason Wessel: "For a change we removed more code than we added. If people aren't using it we shouldn't be carrying it. :-) Cleanups: - Remove kdb ssb command - there is no in kernel disassembler to support it - Remove kdb ll command - Always caused a kernel oops and there were no bug reports so no one was using this command - Use kernel ARRAY_SIZE macro instead of array computations Fixes: - Stop oops in kdb if user executes kdb_defcmd with args - kdb help command truncated text - ppc64 support for kgdbts - Add missing kconfig option from original kdb port for dealing with catastrophic kernel crashes such that you can reboot automatically on continue from kdb" * tag 'for_linux-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb: kdb: Remove unhandled ssb command kdb: Prevent kernel oops with kdb_defcmd kdb: Remove the ll command kdb_main: fix help print kdb: Fix overlap in buffers with strcpy Fixed dead ifdef block by adding missing Kconfig option. kdb: Setup basic kdb state before invoking commands via kgdb kdb: use ARRAY_SIZE where possible kgdb/kgdbts: support ppc64 kdb: A fix for kdb command table expansion
101 lines
3.1 KiB
Text
101 lines
3.1 KiB
Text
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config HAVE_ARCH_KGDB
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bool
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menuconfig KGDB
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bool "KGDB: kernel debugger"
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depends on HAVE_ARCH_KGDB
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depends on DEBUG_KERNEL
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help
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If you say Y here, it will be possible to remotely debug the
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kernel using gdb. It is recommended but not required, that
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you also turn on the kernel config option
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CONFIG_FRAME_POINTER to aid in producing more reliable stack
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backtraces in the external debugger. Documentation of
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kernel debugger is available at http://kgdb.sourceforge.net
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as well as in DocBook form in Documentation/DocBook/. If
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unsure, say N.
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if KGDB
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config KGDB_SERIAL_CONSOLE
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tristate "KGDB: use kgdb over the serial console"
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select CONSOLE_POLL
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select MAGIC_SYSRQ
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depends on TTY
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default y
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help
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Share a serial console with kgdb. Sysrq-g must be used
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to break in initially.
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config KGDB_TESTS
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bool "KGDB: internal test suite"
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default n
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help
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This is a kgdb I/O module specifically designed to test
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kgdb's internal functions. This kgdb I/O module is
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intended to for the development of new kgdb stubs
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as well as regression testing the kgdb internals.
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See the drivers/misc/kgdbts.c for the details about
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the tests. The most basic of this I/O module is to boot
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a kernel boot arguments "kgdbwait kgdbts=V1F100"
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config KGDB_TESTS_ON_BOOT
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bool "KGDB: Run tests on boot"
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depends on KGDB_TESTS
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default n
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help
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Run the kgdb tests on boot up automatically without the need
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to pass in a kernel parameter
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config KGDB_TESTS_BOOT_STRING
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string "KGDB: which internal kgdb tests to run"
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depends on KGDB_TESTS_ON_BOOT
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default "V1F100"
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help
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This is the command string to send the kgdb test suite on
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boot. See the drivers/misc/kgdbts.c for detailed
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information about other strings you could use beyond the
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default of V1F100.
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config KGDB_LOW_LEVEL_TRAP
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bool "KGDB: Allow debugging with traps in notifiers"
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depends on X86 || MIPS
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default n
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help
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This will add an extra call back to kgdb for the breakpoint
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exception handler on which will will allow kgdb to step
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through a notify handler.
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config KGDB_KDB
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bool "KGDB_KDB: include kdb frontend for kgdb"
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default n
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help
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KDB frontend for kernel
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config KDB_KEYBOARD
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bool "KGDB_KDB: keyboard as input device"
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depends on VT && KGDB_KDB
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default n
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help
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KDB can use a PS/2 type keyboard for an input device
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config KDB_CONTINUE_CATASTROPHIC
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int "KDB: continue after catastrophic errors"
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depends on KGDB_KDB
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default "0"
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help
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This integer controls the behaviour of kdb when the kernel gets a
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catastrophic error, i.e. for a panic or oops.
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When KDB is active and a catastrophic error occurs, nothing extra
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will happen until you type 'go'.
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CONFIG_KDB_CONTINUE_CATASTROPHIC == 0 (default). The first time
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you type 'go', you will be warned by kdb. The secend time you type
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'go', KDB tries to continue. No guarantees that the
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kernel is still usable in this situation.
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CONFIG_KDB_CONTINUE_CATASTROPHIC == 1. KDB tries to continue.
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No guarantees that the kernel is still usable in this situation.
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CONFIG_KDB_CONTINUE_CATASTROPHIC == 2. KDB forces a reboot.
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If you are not sure, say 0.
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endif # KGDB
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